Storage is 1TB but Windows Only Shows Drive as 180GB

Question

Storage is 1TB but Windows Only Shows Drive as 180GB

Sadistik909 20

So my Samsung Galaxy BookPro 5 is a 1TB laptop, but when I click on my storage, it shows the C drive as only being 180GB total. It has partitions of 1, 4, 5 & 6 but there is no 2 or 3. I have taken as many screenshots as possible to try to showcase what is going on. Please help!!!! Screenshot 2026-07-16 125428

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Sadistik909 20 Reputation points

2026-07-16T20:39:56.95+00:00

So why am I only seeing around 78GB of free space?
Viorel 127.3K Reputation points

2026-07-17T12:40:14.4+00:00
Did you try to run the chkdsk tool with corresponding options (such as /sdcleanup or /r)?

https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/chkdsk
Neil D 34,305 Reputation points Volunteer Moderator

2026-07-17T13:46:54.75+00:00

You need to run chkdsk as suggested. The Disk Management screenshot shows the C: drive capacity as 932.41GB and verifies Disk 0 as 953.85GB but the capacity shown in the top pane only shows 179.53GB.
Sadistik909 20 Reputation points

2026-07-17T21:31:17.8866667+00:00

attempting to do that now
Sadistik909 20 Reputation points

2026-07-17T21:37:56.6766667+00:00

No change in space
Neil D 34,305 Reputation points Volunteer Moderator

2026-07-18T08:58:24.96+00:00

So you have ran chkdsk /r /f using a Command prompt (Admin) although I must admit the difference between the two parts a Disk Management is substantial.

Have you always had only windows installed on the device?

Is there any disk checking utility from Samsung you can use to check the disk?

You can try TreeSize from the windows Store. Make sure you run it as administrator and along the bottom of the result it will show the total size of files used on the disk. (although it may just show the capacity as 179.53GB)

You can share a screenshot if necessary and make sure you expand any large folders so we can see what is in them.
Sadistik909 20 Reputation points

2026-07-18T23:32:00.13+00:00

So the laptop came with Windows Home, I upgraded to Pro. My girl used my laptop for about 10 minutes and when I got home, everything was a mess. It wouldn't update, i couldn't roll it back, every recovery option did not work. So then I finally just reinstalled a copy of windows downloaded from their website and installed on a USB and got my laptop back up and running. But it isn't even the way Samsung had it setup, I had to do a bare install. I wiped everything from the laptop, didn't have muich as it was barely used other than making sure everything was up to date.

Answer accepted by question author

Ramesh 181.6K Volunteer Moderator

Please run these commands now:

diskpart
list volume
sel volume C
extend filesystem
exit

Open Disk Management and post a screenshot.

Reference: Disk Management Reports Incorrect Volume Size

Sadistik909 20 Reputation points

2026-07-19T14:57:22.2233333+00:00
Sadistik909 20 Reputation points

2026-07-19T14:59:17.9733333+00:00

Thank you Ramesh, that command fixed it and itz now showing over 800GB of free storage!!! I'm so glad that everything is fixed now!!! Now I can create a backup and can use my laptop as normal!!! Thank you thank you thank you!!!!
Ramesh 181.6K Reputation points Volunteer Moderator

2026-07-19T15:11:30+00:00

You're very welcome!

Glad to have helped. 👍

4 additional answers

Your answer

Sadistik909 20 Reputation points

2026-07-16T20:39:56.95+00:00

So why am I only seeing around 78GB of free space?
Viorel 127.3K Reputation points

2026-07-17T12:40:14.4+00:00

Did you try to run the chkdsk tool with corresponding options (such as /sdcleanup or /r)?

https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/chkdsk
Neil D 34,305 Reputation points Volunteer Moderator

2026-07-17T13:46:54.75+00:00

You need to run chkdsk as suggested. The Disk Management screenshot shows the C: drive capacity as 932.41GB and verifies Disk 0 as 953.85GB but the capacity shown in the top pane only shows 179.53GB.
Sadistik909 20 Reputation points

2026-07-17T21:31:17.8866667+00:00

attempting to do that now
Sadistik909 20 Reputation points

2026-07-17T21:37:56.6766667+00:00

No change in space
Neil D 34,305 Reputation points Volunteer Moderator

2026-07-18T08:58:24.96+00:00

So you have ran chkdsk /r /f using a Command prompt (Admin) although I must admit the difference between the two parts a Disk Management is substantial.

Have you always had only windows installed on the device?

Is there any disk checking utility from Samsung you can use to check the disk?

You can try TreeSize from the windows Store. Make sure you run it as administrator and along the bottom of the result it will show the total size of files used on the disk. (although it may just show the capacity as 179.53GB)

You can share a screenshot if necessary and make sure you expand any large folders so we can see what is in them.
Sadistik909 20 Reputation points

2026-07-18T23:32:00.13+00:00

So the laptop came with Windows Home, I upgraded to Pro. My girl used my laptop for about 10 minutes and when I got home, everything was a mess. It wouldn't update, i couldn't roll it back, every recovery option did not work. So then I finally just reinstalled a copy of windows downloaded from their website and installed on a USB and got my laptop back up and running. But it isn't even the way Samsung had it setup, I had to do a bare install. I wiped everything from the laptop, didn't have muich as it was barely used other than making sure everything was up to date.
Sadistik909 20 Reputation points

2026-07-19T14:57:22.2233333+00:00
Sadistik909 20 Reputation points

2026-07-19T14:59:17.9733333+00:00

Thank you Ramesh, that command fixed it and itz now showing over 800GB of free storage!!! I'm so glad that everything is fixed now!!! Now I can create a backup and can use my laptop as normal!!! Thank you thank you thank you!!!!
Ramesh 181.6K Reputation points Volunteer Moderator

2026-07-19T15:11:30+00:00

You're very welcome!

Glad to have helped. 👍

Answer 1

Craig Long 18,630

If you haven't done this already, go to Windows Start > Settings > System > Storage, then click Show more categories under Local Disk (C:).

Your Downloads folder should be showing there, but I think Downloads is under Temporary Files.

See what's in Temporary Files by clicking on it.

Craig Long 18,630 Reputation points

2026-07-16T22:10:47.4266667+00:00

Click on the others also.
Craig Long 18,630 Reputation points

2026-07-17T07:24:50.06+00:00

Are you signed in to a Windows Administrator account?
Sadistik909 20 Reputation points

2026-07-17T21:32:46.7333333+00:00

already showing more categories
Sadistik909 20 Reputation points

2026-07-17T21:34:08.0666667+00:00

Already showing
Sadistik909 20 Reputation points

2026-07-17T21:42:38.0033333+00:00

itz my personal laptop, no one has used it. and i clicked run as admin
Craig Long 18,630 Reputation points

2026-07-17T21:47:18.1233333+00:00

How big is your OneDrive folder? My OneDrive folder size is displayed incorrectly in the Storage settings, and yours may be as well.

Go to C:\Users\YourUsername\OneDrive.
Craig Long 18,630 Reputation points

2026-07-17T21:53:29.03+00:00

If you use OneDrive and the folder size is large, right-click the OneDrive folder in File Explorer and select "Free up space".
Sadistik909 20 Reputation points

2026-07-17T21:58:04.1466667+00:00

it says only 484Mb
Craig Long 18,630 Reputation points

2026-07-17T22:00:51.6966667+00:00

When you go to Windows Start > Settings > Accounts, does it show you as Administrator?
Sadistik909 20 Reputation points

2026-07-17T22:00:58.16+00:00

And i dont think that could account for over 700GB of space.
Sadistik909 20 Reputation points

2026-07-17T22:02:07.22+00:00

and i believe it would still show that space being used, whereas I dont show mine allocated or unallocated
Craig Long 18,630 Reputation points

2026-07-17T22:02:49.76+00:00

You don't subscribe to Microsoft 365, then, right?
Sadistik909 20 Reputation points

2026-07-17T22:03:15.93+00:00

yes I do, premium
Sadistik909 20 Reputation points

2026-07-17T22:04:38.8566667+00:00

Yes, im the only 1 to EVER use this laptop
Craig Long 18,630 Reputation points

2026-07-17T22:05:19.95+00:00

You say you have Microsoft 365 Premium?

Do all your OneDrive files in File Explorer have cloud icons then? If they show as green icons, then they are taking up space on your PC.
Sadistik909 20 Reputation points

2026-07-18T23:20:05.5466667+00:00

they're BLUE

Answer 2

Carl-L 21,995 Microsoft External Staff Moderator

Hello Sadistik909,

Welcome to Microsoft Q&A forum.

The photo shows that the system does detect the full size of your drive, even down to the volume. In this case, the most likely reason that I can think of right now is the quota settings of the drive. Please follow these steps to check it:

Open File Explorer > This PC.
Right click your drive > Properties.
Select "Quota" tab.
Click "Show Quota Settings".
Please let me know the results you see.

I'm waiting for your reply.

Sadistik909 20 Reputation points

2026-07-17T21:30:31.71+00:00

No limits
Sadistik909 20 Reputation points

2026-07-17T21:33:49.8933333+00:00

No limits
Sadistik909 20 Reputation points

2026-07-17T21:46:43.9533333+00:00

no limits
Carl-L 21,995 Reputation points Microsoft External Staff Moderator

2026-07-18T13:59:17.14+00:00

Hello Sadistik909,

Thanks for replying.

I see that other users are also posting their suggestions. Can you please follow it first and let me know how it goes?
Sadistik909 20 Reputation points

2026-07-18T23:20:57.52+00:00

everything has failed to resolve the issue thus far
Ian-T 12,305 Reputation points Microsoft External Staff Moderator

2026-07-20T05:58:05.8066667+00:00

Hi Sadistik909

Sorry for not giving the ideal solution for you. I can see that the issue has been resolved following Ramesh's answer - glad that things are working fine on your end now.

Thank you for your patience and understanding. Have a great day

Answer 3

Craig Long 18,630

How big is your Downloads folder?

Sadistik909 20 Reputation points

2026-07-19T14:51:44.8833333+00:00

Not that big, not sure but not over 100GB

Answer 4

Ramesh 181.6K Volunteer Moderator

Hi @Sadistik909

Open Command Prompt (admin) and run these commands:

diskpart

select disk 0

list part

list volume

exit

Post the output here.

Sadistik909 20 Reputation points

2026-07-19T07:27:41.21+00:00
Sadistik909 20 Reputation points

2026-07-19T07:28:43.06+00:00

I ran tyhe list volume twice becuz I thought I may have stopped it early.
Neil D 34,305 Reputation points Volunteer Moderator

2026-07-19T08:37:03.31+00:00

The command you have just ran confirm a 932GB boot partition. So there is a problem with windows seeing the full size of the disk.

It may have been best to mention the clean install during your initial post.

Did you delete all windows partitions when at the customised install step?

I noticed originally there is still a Samsung Recovery partition available. That means Samsung have a factory reset option rather than using the Microsoft boot USB flash drive.

What do Samsung say you should do to run a factory reset/recovery?

In the meantime can you boot using the USB flash drive again and proceed to the Customised install step and take a photo of the screen showing the list of partitions. Post back that photo.
Ramesh 181.6K Reputation points Volunteer Moderator

2026-07-19T08:41:35.4166667+00:00

@Sadistik909

I ran tyhe list volume twice becuz I thought I may have stopped it early.

I wonder if you saw my previous post. See https://learn.microsoft.com/en-us/answers/a/12875862
Sadistik909 20 Reputation points

2026-07-19T14:49:49.0066667+00:00

When I did the clean install, it didn't give me the option to delete or save partitions. When I initially tried to recover my laptop, nothing worked, not even in the recovery partition from Samsung. It kept giving me a "critical process died" error or something like that. No matter what I tried, everything failed until I finally did the "clean install" which gave me a bare windows 11 home, then had to upgrade to 11 pro and get most of the stuff that came with my samsung laptop. So after finally getting everything back up and running, that's when I was gonna create a backup and noticed that I didn't have the TB that came with it originally.
Neil D 34,305 Reputation points Volunteer Moderator

2026-07-19T15:17:21.6266667+00:00

I see you have been able to fix it with the command from Ramesh. Great news.

As a note during a clean install you must delete all existing partitions (one at a time) until there is only unallocated space. That would also remove the Samsung recovery partition.

Even if the Samsung recovery had worked it will always be the version and build of widows that came with the laptop so although it should have worked it will be out of date pretty quickly. And you lose the space it takes up on the internal drive.

As a further note I assume you are using external storage for your backup?
Sadistik909 20 Reputation points

2026-07-19T23:26:41.7933333+00:00

Of course, not putting all my eggs in 1 basket